JPS6239713Y2 - - Google Patents

Description

[Detailed description of the invention] This invention aligns a pair of left and right tapes and continuously feeds them to the sewing section of the sewing machine, and at the same time overlaps an interlocking element band in which the left and right element rows are interlocked with each other between the two tapes. This invention relates to a device that feeds the elements together, but stops the feeding at intervals, and when the feeding stops, cuts the meshing element band to create a slide fastener chain that has spaces without elements in each predetermined section, and its purpose is to By supplying a meshing element band in which left and right element rows are meshed, there is no deviation in the pitch between individual elements, and when cutting the meshing element band, the elements to be cut are reliably cut at the desired position. To provide a manufacturing device for an intermittent slide fastener chain which can be cut and finished at predetermined lengths.

Therefore, the manufacturing device according to this invention has a running path that continuously feeds the left and right tapes in parallel to the sewing section of the sewing machine, and a running path that intermittently feeds the meshing element band to the sewing section of the sewing machine. The invention is characterized in that a fixed-length feeding section using a ratchet wheel and a cutting section are provided on the meshing element band travel path, and in particular, the cutting section is composed of a movable blade, a fixed blade, and a pin for positioning the cutting.

Hereinafter, this invention will be explained by way of examples in order to be understood. Figures 1 and 2 show a manufactured intermittent slide fastener chain f, the tapes t and t of which are made of paper, for example, a slide fastener used for a paper bag opening. , one side edge of the tapes t and t is bent and the meshing element band E is attached with a sewing thread y so as to straddle that part, and the sewing thread y is attached to the space s where there is no meshing element band E. It is sewn continuously to the stitching of the engaging element band E in a taut state.

3 and 4 show the outline of this device. A pair of upper and lower feed rollers 4, 4 are provided in front of the sewing machine 1 (on the left side in the figure), which is equipped with a pair of left and right needles 2, 2. A tape running path 5 and a meshing element band running path 6 are provided at the rear of the sewing machine 1 toward the sewing section 3 (directly below the needles 2, 2) of the sewing machine 1. tape t, t
They are aligned and continuously fed by guide rollers (not shown). Meshing element band running path 6
is formed of a guide 7 having a cavity that is kept horizontal with the sewing section 3 of the sewing machine 1, and a fixed-length feeding section 8 and a cutting section 9 are arranged in a line in this running path 6.

As shown in FIG. 4, FIG. 6, and FIG. 7, the regular length feeding section 8 has a window hole 10 in the middle part of the upper surface of the guide 7, and has a claw that feeds the meshing element band E in opposition to the window hole 10. A wheel 11 is pivotally supported, and the ratchet wheel 11 has two rows of pawls 12, 12 extending between the left and right elements e, e of the meshing element band E on the outer peripheral surface of the disc.
are provided projecting at equal intervals in the circumferential direction, and the ratchet wheels 11 are interlocked with the feed roller 4 via a belt 12 and a clutch with a brake 13, as shown in FIG. Of course, the ratchet wheel 11 is rotated at a speed corresponding to the sewing speed of the sewing machine to feed the meshing element band E, and after the meshing element band E has been fed a predetermined length, the clutch 13 is disengaged and the ratchet wheel 11 is stopped. It is controlled by

The cutting section 9 is connected to the ratchet wheel 11 and the sewing section 3 of the sewing machine.
It is provided in the middle part of the blade, and is formed by a movable blade 14 that moves up and down, a fixed blade 15 that opposes this, and a positioning pin 16, and the movable blade 14 is
Lever 1 that swings up and down by solenoid 17
8 and is driven up and down. The pin 16 is installed vertically facing the movable blade 14, and has a thickness that allows it to protrude between the elements e and e, and its lower end is set so that it does not touch the surface of the meshing element band E that is running. They are close to each other, and as shown in FIG. It is arranged so that it is located.

This invention has the above structure, and the sewing machine 1 is driven by aligning the pair of tapes t and t and guiding the meshing element band E along each traveling path 5 and 6 toward the sewing section 3 of the sewing machine. For example, the meshing element band E is sewn onto the tapes t, t with needles 2, 2 of a sewing machine, and is sent out with feed rollers 4, 4, while the ratchet wheel 1
At step 1, the meshing element bands E are fed in sequentially.
When the meshing element band E has been fed a predetermined length, the clutch 13 is disengaged to stop the rotation of the ratchet wheel 11, and at the same time, the solenoid 17 is driven to raise the movable blade 14. The movable blade 14 rises and its cutting edge becomes the fixed blade 15
During this period, the meshing element band E is supported by the movable blade 14, so the meshing element band E
The pin 16 enters between the elements e and e to define the cutting position, and then the meshing element band E is cut by the movable blade 14 and the fixed blade 15. Therefore, the meshing element bands E ahead of the cutting line 19 advance together with the tape t, while those behind the cutting line 19 continue to stop, but the tapes t and t are continuously fed. After a predetermined time, the ratchet wheel 11 is driven again and the meshing element band E is fed. As a result, an intermittent slide fastener chain f is created in which the interlocking element bands E do not exist on the tapes t, t, that is, there are space portions s, and the sewing thread y is sewn into the space portions s.

As described above, the intermittent slide fastener chain manufacturing device according to this invention has a running path that continuously feeds a pair of tapes in alignment to the sewing section of the sewing machine;
The meshing element band is provided with a running path that intermittently feeds the meshing element band in which the left and right element rows are meshed, and the meshing element band running path is provided with a fixed-length feeding section formed by a ratchet wheel that rotates intermittently, and a fixed-length feeding section formed by a ratchet wheel that rotates intermittently, and when the ratchet wheel is stopped. An operating cutting section is provided, and the cutting section is formed by a movable blade, a fixed blade, and a pin inserted between the elements, and the cutting position is determined by inserting the pin between the elements before cutting the meshing element band. Therefore, it is possible to reliably cut the element at a predetermined position, and the length of the cut meshing element band is supplied at a predetermined length.As a result, the space interval is also constant, and Since it is supplied as a meshing element band, the pitch between the elements will not be misaligned during manufacturing, and the slider can be easily passed through, providing an extremely good slide fastener.

[Brief explanation of the drawing]

Fig. 1 is a front view showing an intermittent slide fastener chain manufactured by the intermittent slide fastener chain manufacturing apparatus according to this invention, Fig. 2 is a plan view of the same, and Fig. 3 is a manufacture of an intermittent slide fastener chain according to this invention. FIG. 4 is a plan view showing the device partially cut away; FIG. 5 is a plan view showing the meshing element band in a cut state; FIG. 6 is a cutaway view of the ratchet wheel of the fixed length feed section Plan view,
FIG. 7 is a sectional view similarly seen from the side, FIG. 8 is a sectional view of the guide, and FIG. 9 is a sectional view showing the sewing section of the sewing machine. DESCRIPTION OF SYMBOLS 1... Sewing machine, 2... Needle, 3... Sewing part of the sewing machine, 4... Feeding roller, 5... Tape running path, 6... Engaging element band running path, 7... Guide, 8... Fixed Scale feed section, 9... Cutting section, 10...
Window hole, 11... ratchet wheel, 12... belt, 13...
Clutch, 14...Movable blade, 15...Fixed blade, 1
6...Pin, 17...Solenoid, 18...Lever, f...Intermittent slide fastener chain, t
... Tape, E ... Engaging element band, e ... Element, y ... Sewing thread, s ... Space part.

Claims (1)

[Claims for Utility Model Registration] 1. A running path 5 that continuously feeds a pair of left and right tapes t, t toward the sewing section 3 of the sewing machine, and an interlocking element band E that meshes the left and right element rows. a fixed-length feeding section 8 and a cutting section that intermittently control the rotation stop timing of the ratchet wheel 11 that feeds the meshing element band E to the meshing element band running path 6; 9, the cutting section 9 has a movable blade 14 provided between the fixed length feed section 8 and the sewing section 3 of the sewing machine, and a fixed blade 1 opposite thereto.
5, and is characterized in that a movable blade 14 moves in response to the stoppage of rotation of a ratchet wheel 11. 2. A utility model characterized in that, facing the movable blade 14, a pin 16 of a thickness that can penetrate between adjacent elements is provided in a state in which the tip of the pin 16 is close to the traveling meshing element band E without touching it. An apparatus for manufacturing an intermittent sliding fastener chain according to claim 1.